PERBANDINGAN PERKERASAN KAKU DAN PERKERASAN LENTUR BERDASARKAN BIAYA DAN UMUR RENCANA (STUDI KASUS LOT-3 JEMBATAN KRETEK 2 BANTUL)
Keywords:flexible pavement, rigid pavement, budget plan
The construction of LOT-3 Kretek 2 Bridge is part of the Southern Cross Road (JJLS) Java Island. This bridge was built to connect the Samas–Kretek and Kretek–Parangtritis roads in Bantul Regency, which are separated from the Opak River. In this study, we will compare rigid pavement planning and flexible pavement at the LOT-3 Kretek 2 Bridge project site, guided by the “Manual Desain Perkerasan Jalan 2017 Bina Marga”. Then the two pavements will be compared to get a more economical and long-lived pavement. Finally, based on data processing results, the flexible pavement is planned with a thickness of AC-WC = 40 mm, AC-BC = 60 mm, AC-Base = 160 mm, Aggregate Class A = 300 mm, and support layer = 100 mm. Meanwhile, for rigid pavement, cement concrete pavement with unreinforced joints is used with a concrete slab thickness = 300 mm, a thin concrete layer = 100 mm, and a drainage layer = 150 mm. From the analysis and calculation, the budget plan for flexible pavement is Rp. 15,382,772,000.00 with a design life of 20 years, while the rigid pavement is Rp. 18,093,230,000.00 with a design life of 40 years. So, rigid pavement is more economical because the price is 14.98% higher but has twice the design life.
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